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20121003
20121003
Search Results 0 to 4 of about 5 (some duplicates have been removed)
science say the reef has lost half of its coral cover over the past 27 years. there are multiple causes, including a destructive kind of starfish shown here. we look at what's behind it and what's at stake-- in australia and around the world-- with nancy knowlton, a coral reef biologist and a chair of marine science at the smithsonian national museum of natural history here in washington. welcome. >> thanks. how has all of this coral died off? do we know what's causing it? is it all that... >> it's not all the star fish. the star fish is about 42%. typhoons, big strong storms another 48% and then coral bleaching is the remaining 10% which is caused whenever the water gets too hot. >> ifill: so this is human causedded? >> yes. most of it is human caused. i mean a coral reef naturally goes through cycles of up and down. but it shouldn't be declining by half over course of 27 years. >> ifill: i feel like we have talked before about the declining coral cover. but not... but i'm wondering whether it's now picking up speed or whether this is just a natural deterioration that we should just be
the most government funded research to push the boundaries of science and technology so our best innovators and the entrepreneurs could pluck them and start these companies. if you think about that is a formula for success, and education we now -- well, roughly 30% of high school students drop out of high school. we used to lead the world in college graduates coming out of high school. we no longer do that. on infrastructure, according to the american society of civil engineers we are now $2 trillion in deficit in terms of infrastructure. immigration we have a policy to get a great education and then get the hell out of our country. we are fighting on the simplest h-1b issues that are so vital for our future strength. fourth, the rules for incentivizing risk-taking and preventing recklessness. i don't think that we have in any way remedied that the way we want and on the government funded research if it looks like an ekg heading for a heart attack. i don't know if they are relative to what. all i know is in the things that have historically made us great, on each one of those i see us not g
Search Results 0 to 4 of about 5 (some duplicates have been removed)